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Related Experiment Videos

Hemorrhagic cystitis complicating untreated necrotizing vasculitis

J A Block1

  • 1Department of Medicine, Rush-Presbyterian-St. Luke's Medical Center, Chicago, Illinois 60612.

Arthritis and Rheumatism
|June 1, 1993
PubMed
Summary

Hemorrhagic cystitis, often linked to chemotherapy, can be an early sign of untreated polyarteritis nodosa. This rare presentation highlights active vasculitis as a cause of bladder inflammation.

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Area of Science:

  • Nephrology
  • Urology
  • Rheumatology

Background:

  • Polyarteritis nodosa (PAN) commonly affects the genitourinary system, but bladder wall involvement is rare.
  • Hemorrhagic cystitis is a known complication of cyclophosphamide therapy for vasculitis.
  • Bladder vasculitis has not been previously reported as a complication of untreated PAN.

Observation:

  • A patient presented with non-treatment-related hemorrhagic cystitis.
  • Diagnostic investigation revealed nongranulomatous necrotizing vasculitis affecting the urinary bladder wall.
  • This was identified as the cause of the hemorrhagic cystitis.

Findings:

  • This case represents a novel presentation of polyarteritis nodosa.
  • It is the first reported instance of vasculitis causing hemorrhagic cystitis in untreated PAN.

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  • The findings suggest active necrotizing vasculitis as a potential cause of spontaneous hemorrhagic cystitis.

    • Implications:

    • The differential diagnosis for spontaneous hemorrhagic cystitis should include active necrotizing vasculitis.
    • This underscores the importance of considering systemic vasculitis in unexplained hemorrhagic cystitis.
    • Early recognition of vasculitis can lead to timely diagnosis and management of PAN.